Physical and Magnetic Properties of Ni1-xCdxFe2O4 Ferrites Synthesized by Glycine-Nitrate Auto-Combustion Process

Abstract

In this work, magnetic spinel Ni_1-xCd_xFe₂O₄ ferrites (where x = 0, 0.4, and 0.6) were synthesized through glycine-nitrate auto-combustion process. Physical and magnetic properties that reported through XRD analysis, surface morphology, FTIR analysis, and magnetic measurement confirmed the formation of spinel structure for all ferrites with secondary phase of CdO with the crystallite size decreases from 32.09nm to 20.59nm with the increase of Cd²⁺ ion content for x = 0.4. FE-SEM images show that pure Ni-ferrite nanoparticles possess agglomeration. With increasing cadmium content at x=0.6, the morphology of the particles slightly changes. The agglomeration slightly enhance and spherical nanoferrites formation. FTIR spectra present the slight shift of the higher absorption band to low wavenumber for (x=0.4 and 0.6), which confirms the formation of Ni_1-xCd_xFe₂O₄ spinel structure. Results show that, saturation magnetization decreased as the Cd content increases.